Hi all, Can someone tell me what this is and what it is used for??? Thanks Rick

Hi all, Can someone tell me what this is and what it is used for??? Thanks Rick

An old time track powered Back’n’Forth speed controller.
Thanks Tony,
So is that a “reversing unit” with a settable time
for the stops?
Thanks
Rick
Yes.
Just simple ON - OFF control. Speed is set by the actual trackside control used to power the reverser. Uses Diodes to limit travel.
Oh darn and I thought it was the drive controler for a TIME Machine. 
David Kapp said:You need a sonic screwdriver.
Oh darn and I thought it was the drive controler for a TIME Machine. :)
i would suspect, that it might be a timer for trains to stop for a certain time at stations.